Datasets:
| What is the spatial relation betweeen the purple block and the red block? | |
| (A) The purple block is directly above the red block, and they are in the same stack. | |
| (B) The purple block is directly below the red block, and they are in the same stack. | |
| (C) The purple block and the red block are at different stacks. | |
| (D) At least one of the purple block and the red block does not exist in the presented configurations. | |